Percentage Calculator
Calculate percentages quickly and easily. Solve various percentage problems with detailed explanations.
Calculate Percentage
About Percentage Calculations
Percentages are a way to express numbers as a fraction of 100. They're widely used in finance, statistics, shopping, and everyday calculations.
Basic Percentage Formulas
- What is X% of Y? Answer = (X ÷ 100) × Y
- X is what % of Y? Answer = (X ÷ Y) × 100
- X is Y% of what? Answer = (X ÷ Y) × 100
- Percentage Change: ((New - Old) ÷ Old) × 100
Common Uses
- Shopping: Calculate discounts and sales prices
- Finance: Interest rates, investment returns, tax calculations
- Education: Grade calculations, test scores
- Business: Profit margins, growth rates, market share
- Statistics: Data analysis, probability
Percentage Examples
- Example 1: What is 20% of 500? → 100
- Example 2: 50 is what % of 200? → 25%
- Example 3: 100 is 25% of what? → 400
- Example 4: Percentage change from 100 to 150? → 50% increase
Quick Tips
- To convert decimal to percentage, multiply by 100
- To convert percentage to decimal, divide by 100
- 50% = 0.5 = 1/2
- 25% = 0.25 = 1/4
- 100% represents the whole amount